Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations

Detalhes bibliográficos
Autor(a) principal: Araújo,M.S.T.
Data de Publicação: 2002
Outros Autores: Vannucci,A., Oliveira,K.A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000100024
Resumo: The influence of the toroidal geometry, and the plasma column displacement, over the usual tokamak poloidal magnetic field configuration was investigated for circular plasmas through a series of simulations. The results obtained clearly showed the existence of a change in phase modulation of the Mirnov signals, which are not usually considered when the magnetic signals are Fourier analyzed in the frame of cylindrical approximation, that is, by neglecting any possible toroidal effect. Furthermore, if the occasional displacements of the plasma column in tokamaks are considered, some differences on the mode composition are also observed. These discrepancies, however, do not seem to affect the analysis of the magnetic signals as strongly as in the former case, when toroidal effects are neglected.
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spelling Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillationsThe influence of the toroidal geometry, and the plasma column displacement, over the usual tokamak poloidal magnetic field configuration was investigated for circular plasmas through a series of simulations. The results obtained clearly showed the existence of a change in phase modulation of the Mirnov signals, which are not usually considered when the magnetic signals are Fourier analyzed in the frame of cylindrical approximation, that is, by neglecting any possible toroidal effect. Furthermore, if the occasional displacements of the plasma column in tokamaks are considered, some differences on the mode composition are also observed. These discrepancies, however, do not seem to affect the analysis of the magnetic signals as strongly as in the former case, when toroidal effects are neglected.Sociedade Brasileira de Física2002-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000100024Brazilian Journal of Physics v.32 n.1 2002reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332002000100024info:eu-repo/semantics/openAccessAraújo,M.S.T.Vannucci,A.Oliveira,K.A.eng2002-11-26T00:00:00Zoai:scielo:S0103-97332002000100024Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2002-11-26T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
title Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
spellingShingle Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
Araújo,M.S.T.
title_short Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
title_full Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
title_fullStr Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
title_full_unstemmed Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
title_sort Toroidal geometry and plasma column displacement corrections in the analysis of Mirnov oscillations
author Araújo,M.S.T.
author_facet Araújo,M.S.T.
Vannucci,A.
Oliveira,K.A.
author_role author
author2 Vannucci,A.
Oliveira,K.A.
author2_role author
author
dc.contributor.author.fl_str_mv Araújo,M.S.T.
Vannucci,A.
Oliveira,K.A.
description The influence of the toroidal geometry, and the plasma column displacement, over the usual tokamak poloidal magnetic field configuration was investigated for circular plasmas through a series of simulations. The results obtained clearly showed the existence of a change in phase modulation of the Mirnov signals, which are not usually considered when the magnetic signals are Fourier analyzed in the frame of cylindrical approximation, that is, by neglecting any possible toroidal effect. Furthermore, if the occasional displacements of the plasma column in tokamaks are considered, some differences on the mode composition are also observed. These discrepancies, however, do not seem to affect the analysis of the magnetic signals as strongly as in the former case, when toroidal effects are neglected.
publishDate 2002
dc.date.none.fl_str_mv 2002-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000100024
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000100024
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332002000100024
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.32 n.1 2002
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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